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Implementation method: 1. Use substr(), the syntax "substr("data value", 1)"; 2. Use preg_replace() with regular expressions, the syntax "preg_replace('/^./' , '',"data value")", searches for the first character of the specified data and replaces it with a null character.
The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer
Remove the first number in the data, and Just remove the first character of the data. Two methods are introduced below
Method 1: Use the substr() function
The substr() function can intercept all characters after the first character to achieve removal The first character of the numeric string.
<?php $num = 1234567; echo substr($num, 1); ?>
Method 2: Use the preg_replace() function with regular expressions
Use regular expressions to search for the digit string One character, replace it with an empty character
<?php $num = 1234567; echo preg_replace('/^./', '', $num); ?>
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